<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>小熊动画</title>
    <style>
        body {
            background-color: #cccccc;
        }
        div {
            position: absolute;
            top: 300px;
            width: 200px;
            height: 100px;
            background: url(media/bear.png) no-repeat;
            /*我们元素可以添加多个动画，用逗号分隔*/
            animation: bear 0.1s steps(8) infinite,move 3s forwards;
        }
        @keyframes bear {
            0% {
                background-position: 0 0;
            }
            100% {
                /*只要往左走就是负值*/
                background-position: -1600px 0;
            }
        }
        @keyframes move {
            0% {
                left: 0;
            }
            100% {
                left: 50%;
               /* margin-left: -100px;*/
                /*走自己宽度的一半*/
                transform: translateX(-50%);
            }
        }
    </style>
</head>
<body>
<div></div>
</body>
</html>